I too am getting the 500 Server error on the home page when starting a session; the link to login works fine, from the banner, and so do the rest of the pages after I login.

Entering the login URL directly does not trigger the 500 error.

The error occurs on any new browser session, that is, I habitually clear all ephemeral data (history, cookies and site data, cache, hosted app data, etc.) when shutting down, so, it seems that it may have something to do with the 'home page' establishing the browser session.

I like pictures, not sure it helps though ... I get the Ad Blocker error even when entering the login URL directly ... also, could you use Friendlier Large Letters for the 500, the current font makes me panic ... ;)